Theeapeutio eleoteic



(No Model.)-

J.'E. CARR,

THERAPEUTIC ELECTRIC APPLIANCE. No. 282096; Patented Oct. 23, 1883.

FQNITED STATES PATENT OFFICE,

THERAPEUTIC ELECTRIC APPLIANCE.

SPECIFICATION forming part of Letters Patent No. 287,096, dated October 23, 1 883.

Application filed July 10, 1882. (No model.)

To all whom it may concern:

Be it known that I, J osErH E. CARR, a citizen of the United States, residing at Philadelphia, in the State of Pennsylvania, have invented a new and useful Appliance in the domain of Electric Therapeutics, of which the following is a specification. I

My invention relates to improvements in galvanic batteries, with the special view of so constructing them as will make them adaptable for therapeutic use upon the human body. Heretofore the whole class of electric therapeutic devices for use upon the human body were divided intotwo classes: first, those apparently of convenient form'for use, wear, or carriage, which, however, gave no measurable current; and, second,those which did give such current, but which, on account of confluxity and fluidity of the generating-battery, were not adapted to constant wear.

In the accompanying drawings, Figure 1 shows mode of applying my invention, and

- Figs.'2 and 3 show sections of the wristletsused.

In my invention I avail myself of the wellknown affinity of calcic chloride for moisture,

and by its means construct the usual battery of electro-positive andelectro-negative ele-- ments, separating said elements by a fabric steeped in a solution of calcic chloride, or by an actual coating of the salt itself, which, acting catalytically, remains practically unchanged, and enables me to generate a current measurable by the rheostat and galvanometer, the emanations of the human body, the aqueous vaporof the atmosphere, or moisture directly applied furnishing the necessary exciting fluid. I am thusenabled to construct batteriesthat can be worn or carried constantly without inconvenience or attention. While I claim this as a principal use of my invention, it is evident that it may also be available for many other purposes.

I claim, then, as my invention As a therapeutic appliance, abattery carrying calcium chloride as a catalytic, substantially for the purpose and in the manner described.

JOSEPH E. CARR. Witnesses:

GEO. W. LEE, M. ARNOLD.

JOSEPH E. CARR, OF PHILADELPHIA, PENNSYLVANIA, ASS IGNOR OF ONE-.- HALF TO OTHO MIOHAELIS, OF SAME PLACE. 

